BSI Standards Publication BS EN 3707 2012 Aerospace series — Headless threaded plugs — Installation holes BS EN 3707 2012 BRITISH STANDARD National foreword This British Standard is the UK implementat[.]
BS EN 3707:2012 BSI Standards Publication Aerospace series — Headless threaded plugs — Installation holes BS EN 3707:2012 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN 3707:2012 The UK participation in its preparation was entrusted to Technical Committee ACE/12, Aerospace fasteners and fastening systems A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © The British Standards Institution 2012 Published by BSI Standards Limited 2012 ISBN 978 580 76578 ICS 49.030.20 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2012 Amendments issued since publication Date Text affected BS EN 3707:2012 EN 3707 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM March 2012 ICS 49.030.20 English Version Aerospace series - Headless threaded plugs - Installation holes Série aérospatiale - Bouchons filetés, sans tête - Trous d'implantation Luft- und Raumfahrt - Verschlussschraube ohne Kopf Einbaulöcher This European Standard was approved by CEN on 23 December 2011 CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref No EN 3707:2012: E BS EN 3707:2012 EN 3707:2012 (E) Contents Page Foreword 3 Scope 4 Normative references 4 3.1 3.2 Required characteristics .4 Configuration — Dimensions — Tolerances 4 Profile trimming .4 4.1 4.2 Installation 5 Hole dimension 5 Special location conditions 6 Designation 7 Indications on drawings — Examples 8 BS EN 3707:2012 EN 3707:2012 (E) Foreword This document (EN 3707:2012) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN) After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by Septembre 2012, and conflicting national standards shall be withdrawn at the latest by September 2012 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom BS EN 3707:2012 EN 3707:2012 (E) Scope This European Standard specifies the dimensions of the installation holes for headless plugs to EN 3706 for sealing drilled fluid systems The maximum operating temperature is 200 °C Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies EN 3706, Aerospace series — Headless threaded plugs, cross recess, in aluminium alloy 50861) ISO 5855-1, Aerospace — MJ Threads — Part 1: General requirements 3.1 Required characteristics Configuration — Dimensions — Tolerances Configuration: See figure Dimensions and tolerances: See figure and table Dimensions are in millimetres 3.2 Profile trimming The plug is fitted in recess with respect to the surface and the profile does not need to be trimmed except when the plugging concerns the air duct surface 1) Published as ASD-STAN pre-standard at the date of publication of the present standard BS EN 3707:2012 EN 3707:2012 (E) 4.1 Installation Hole dimension Figure BS EN 3707:2012 EN 3707:2012 (E) Table ∅A ∅B Dia code ∅ Da 060 MJ6×1,00 – 4g5g 4,9 070 MJ7×1,00 – 4g5g 5,9 080 MJ8×1,00 – 4g5g 6,9 100 MJ10×1,00 – 4g5g 10 8,9 120 MJ12×1,00 – 4g5g 12 10,4 140 MJ14×1,00 – 4g5g 14 14,4 160 MJ16×1,00 – 4g5g 16 14,4 180 MJ18×1,00 – 4g5g 18 16,4 200 MJ20×1,00 – 4g5g 20 18,4 +0,2 Tol R Tb Tol H11 +0,075 +0,090 +0,110 10,50 +1,5 11,50 12,50 +1,5 9,5 14,50 10,7 12 18,75 11,7 14 20,75 13 16 20 +2,25 22,75 24,75 26,75 Basic profile is in conformity with ISO 5855-1 b Use when the ∅ of the duct ∅C